THE RAINFALL OF CORNWALL. 



297 



The results of this table show a remarkable agreemeiit in the 

 fluctuations between stations so widely apart, and with rainfalls 

 so different. The only noticeable variation being in the proportion- 

 ate number of periods of Three consecutive dry years per hundred 

 years, and this result would be expected, in contrasting a station 

 on the western coast, with one so far removed from the influences 

 of the more uniform condensation of moisture from the clouds of 

 the Atlantic. 



The Monthly means may be grouped as follows : — 

 April, May, June, July, 2-42 Ins. Average Monthly Eainfall. 

 Feb., March, Aug., Sep., 3-35 ,, do. do. do. 



Jan., Oct., Nov., Dec, 4-69 ,, do. do. do. 



It will be thus seen that the Monthly rainfall is above the 

 average from September to January, and below it during the 

 remainder of the year. 



It is a well ascertained fact that where the rainfall is small, 

 the principal fall takes place during the summer months ; and 

 where large, in the winter; a gradual retardation of the maximum 

 and Minimum epochs falling on an increased fall. 



Table 3 gives the months in which the maximum epoch occurs 

 in the Central Eastern and Western parts of England. 



^ Minutes of proceedings Inst. Civil Engineers, Vol. 39, p 27. 



